Thin flat panel LED luminaire

摘要

The invention described herein is a very thin flat panel LED luminaire, including a flat baseboard, a flat reflection panel, a flat acrylic panel, a flat diffusion panel, LED bar, and aluminum encasement frame which combines with the baseboard to form the chassis for the luminaire. The LED bar is placed along either or both sides of the stack. The acrylic panel is printed with a mesh-like mask pattern of dots in a pattern in which the density of the pattern is decreases the farther away from the LED bar the pattern is, differentially coupling the light from the point source LED bar from the reflection panel into the flat acrylic panel so that illumination across the luminaire is substantially uniform.

主权项

1. A flat LED luminaire, comprising:
a LED bar having at least one light emitting diode disposed thereon; an optical stack having an edge that abuts the LED bar, including, from top to bottom, a flat baseboard, a flat reflection panel for receiving light from the LED bar, a flat acrylic panel having a top surface and a bottom surface, the top surface facing the flat reflection panel, the top surface having a mask pattern printed thereon, the mask pattern for filtering light transmitted from the flat reflection panel into the flat acrylic panel for providing a uniform transmission of the light from the acrylic panel across the bottom surface of the flat acrylic panel, and a flat diffusion panel configured to receive the light from the bottom surface of the flat acrylic panel and emit the light into a space to be illuminated; and an encasement frame disposed about the stack and LED bar.